        body {
            font-family: Arial, sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background-color: #f5f5f5;
            background-image: url(./image/背景.jpg);
            background-size: cover;
            background-repeat: no-repeat;
        }

        .login-container {
            background-color: white;
            padding: 20px;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            width: 350px;
        }

        /* 标题一 */
        .login-container h1 {
            text-align: center;
        }

        /* 标题二 */
        .login-container h2 {
            margin-bottom: 20px;
            border-bottom: 2px solid gray;
            padding-bottom: 10px;
            color: #000;
        }

        /* 输入框 */
        .login-container input[type="email"],
        .login-container input[type="password"] {
            width: calc(100% - 22px);
            padding: 10px;
            margin-bottom: 10px;
            border: 1px solid #ccc;
            border-radius: 3px;
        }

        /* 登录按钮 */
        .login-container button {
            width: 100%;
            padding: 10px;
            background-color: #007bff;
            color: white;
            border: none;
            border-radius: 3px;
            cursor: pointer;
            font-size: 16px;
        }

        .login-container button:hover {
            background-color: #0056b3;
        }

        /* 注册 */
        .login-container .links {
            display: inline-block;
            justify-content: space-between;
            margin-top: 10px;
        }

        .login-container .links a {
            color: #007bff;
            text-decoration: none;
        }

        .login-container .links a:hover {
            text-decoration: underline;
        }

        /* 游客登录 */
        .guest-login {
            margin-top: 10px;
            display: inline-block;
            color: #007bff;
            text-decoration: none;
            position: relative;
            left: 250px;
        }

        .guest-login:hover {
            text-decoration: underline;
        }

        /* 提示信息 */
        .error-message {
            color: red;
            font-size: 0.8em;
        }